
Ultimate access to all questions.
Deep dive into the quiz with AI chat providers.
We prepare a focused prompt with your quiz and certificate details so each AI can offer a more tailored, in-depth explanation.
The supermarket sells discounted items for an excellent price; this price is modeled uniformly on the interval [0,500]. Calculate the difference between the median and the 10th percentile.
A
250
B
200
C
240
D
50
Explanation:
For a uniform distribution on the interval [0,500]:
Median calculation: The median is the 50th percentile. For a uniform distribution on [a,b], the p-th percentile is given by:
For p = 0.5 (50th percentile): \text{Median} = 0 + 0.5 \times (500-0) = 0.5 \times 500 = 250$`$2`. **10th percentile calculation**: \text{10th percentile} = 0 + 0.1 \times (500-0) = 0.1 \times 500 = 503`. Difference calculation:
Therefore, the correct answer is B (200).
Key points: